| 2010 David Cameron | Conservative |
| 2007 Gordon Brown | Labour |
| 1997 Tony Blair | Labour |
| 1990 John Major | Conservative |
| 1979 Margaret Thatcher | Conservative |
| 1976 James Callaghan | Labour |
| 1974 Harold Wilson | Labour |
| 1970 Edward Heath | Conservative |
| 1964 Harold Wilson | Labour |
| 1963 Sir Alec Douglas-Home | Conservative |
| 1957 Harold Macmillan | Conservative |
| 1955 Sir Anthony Eden | Conservative |
| 1951 Winston Churchill | Conservative |
| 1945 Clement Attlee | Labour |
| 1940 Winston Churchill | Conservative (Coalition Government) |
| 1937 Neville Chamberlain | Conservative (National Government) |
| 1935 Stanley Baldwin | Conservative (National Government) |
| 1931 James Ramsay MacDonald | National Labour (National Government) |
| 1929 James Ramsay MacDonald | Labour |
| 1924 Stanley Baldwin | Conservative |
| 1924 James Ramsay MacDonald | Labour |
| 1923 Stanley Baldwin | Conservative |
| 1922 Andrew Bonar Law | Conservative |
| 1916 David Lloyd George | Liberal (Coalition Government) |
| 1908 Herbert H. Asquith | Liberal (Coalition Government, 1915) |
| 1905 Henry Campbell-Bannerman | Liberal |
| 1902 Arthur Balfour | Conservative |
| 1895 Marquess of Salisbury | Conservative |
| 1894 Earl of Rosebery | Liberal |
| 1892 William Ewart Gladstone | Liberal |
| 1886 Marquess of Salisbury | Conservative |
| 1886 William Ewart Gladstone | Liberal |
| 1885 Marquess of Salisbury | Conservative |
| 1880 William Ewart Gladstone | Liberal |
| 1874 Benjamin Disraeli | Conservative |
| 1868 William Ewart Gladstone | Liberal |
| 1868 Benjamin Disraeli | Conservative |
| 1866 Edward Stanley, Earl of Derby | Conservative |
| 1865 John Russell, Earl Russell | Liberal |
| 1858 Viscount Palmerston | Liberal |
| 1858 Edward Stanley, Earl of Derby | Conservative |
| 1855 Viscount Palmerston | Liberal |
| 1852 George Hamilton-Gordon, Earl of Aberdeen | Conservative |
| 1852 Edward Stanley, Earl of Derby | Conservative |
| 1846 Lord John Russell | Whig |
| 1841 Sir Robert Peel | Tory |
| 1835 William Lamb, Viscount Melbourne | Whig |
| 1834 Sir Robert Peel | Tory |
| 1834 Arthur Wellesley, Duke of Wellington | Tory |
| 1834 William Lamb, Viscount Melbourne | Whig |
| 1830 Charles Grey, Earl Grey | Whig |
| 1828 Arthur Wellesley, Duke of Wellington | Tory |
| 1827 Frederick Robinson, Viscount Goderich | Tory |
| 1827 George Canning | Tory |
| 1812 Robert Jenkinson, Earl of Liverpool | Tory |
| 1809 Spencer Perceval | Tory |
| 1807 William Bentinck, Duke of Portland | Tory |
| 1806 William Grenville, Lord Grenville | Whig |
| 1804 William Pitt, the Younger | Tory |
| 1801 Henry Addington | Tory |
| 1783 William Pitt, the Younger | Tory |
| 1783 William Bentinck, Duke of Portland | Tory |
| 1782 William FitzMaurice, Earl of Shelburne | Whig |
| 1782 Charles Watson-Wentworth, Marquess of Rockingham | Whig |
| 1770 Frederick North, Lord North | Tory |
| 1767 Augustus Fitzroy, Duke of Grafton | Whig |
| 1766 William Pitt the Elder, Earl of Chatham | Whig |
| 1765 Charles Watson-Wentworth, Marquess of Rockingham | Whig |
| 1763 George Grenville | Whig |
| 1762 John Stuart, Earl of Bute | Tory |
| 1757 Thomas Pelham-Holles, Duke of Newcastle | Whig |
| 1756 William Cavendish, Duke of Devonshire | Whig |
| 1754 Thomas Pelham-Holles, Duke of Newcastle | Whig |
| 1743 Henry Pelham | Whig |
| 1742 Spencer Compton, Earl of Wilmington | Whig |
| 1721 Sir Robert Walpole | Whig |
